of Chiba i would recommend The first two StreetFighters(The StreetFighter & Return of the StreetFighter) but i would say the third(The StreetFighters Last Revenge) is a disappointment after the first two but the Oyama trilogy(Karate Bullfighter aka Champion of Death, Karate Bearfighter & Karate for Life) plays out great all the way. Also think the Killing Machine is a great story.

o & heres a Chiba video i just uploaded
[youtube]-GRVJwpXgx4[/youtube]

That picture is definately from The Executioner and for my money's worth, it's Chiba's best film (yes, even over The Streetfighter). It was directed by Teruo Ishii (who ironically hates karate films) and for anyone who hasn't seen it, is one wild anarchic flick. Tons of great karate battles and crazed concepts and it's pretty funny, too.

Executioner 2: Karate Inferno is even crazier and funnier, but it doesn't include Karata and has fewer fight scenes. Alot of people don't like this sequel, but I loved it almost equally (but differently) to the first film.